JP2023065457A5 - - Google Patents
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- JP2023065457A5 JP2023065457A5 JP2023020828A JP2023020828A JP2023065457A5 JP 2023065457 A5 JP2023065457 A5 JP 2023065457A5 JP 2023020828 A JP2023020828 A JP 2023020828A JP 2023020828 A JP2023020828 A JP 2023020828A JP 2023065457 A5 JP2023065457 A5 JP 2023065457A5
- Authority
- JP
- Japan
- Prior art keywords
- mgo
- content
- cao
- magnetic recording
- mol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims 13
- 239000011521 glass Substances 0.000 claims 9
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 6
- 229910018068 Li 2 O Inorganic materials 0.000 claims 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims 4
- 125000006850 spacer group Chemical group 0.000 claims 3
- 239000000758 substrate Substances 0.000 claims 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims 2
- 229910052593 corundum Inorganic materials 0.000 claims 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 2
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024161168A JP2024170658A (ja) | 2019-07-22 | 2024-09-18 | 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019134578 | 2019-07-22 | ||
| JP2019134578 | 2019-07-22 | ||
| JP2019205993 | 2019-11-14 | ||
| JP2019205993 | 2019-11-14 | ||
| PCT/JP2020/028450 WO2021015240A1 (ja) | 2019-07-22 | 2020-07-22 | 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
| JP2021534074A JP7229357B2 (ja) | 2019-07-22 | 2020-07-22 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021534074A Division JP7229357B2 (ja) | 2019-07-22 | 2020-07-22 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2024161168A Division JP2024170658A (ja) | 2019-07-22 | 2024-09-18 | 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2023065457A JP2023065457A (ja) | 2023-05-12 |
| JP2023065457A5 true JP2023065457A5 (enrdf_load_stackoverflow) | 2023-07-26 |
| JP7559105B2 JP7559105B2 (ja) | 2024-10-01 |
Family
ID=74192987
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021534074A Active JP7229357B2 (ja) | 2019-07-22 | 2020-07-22 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
| JP2023020828A Active JP7559105B2 (ja) | 2019-07-22 | 2023-02-14 | 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
| JP2024161168A Pending JP2024170658A (ja) | 2019-07-22 | 2024-09-18 | 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021534074A Active JP7229357B2 (ja) | 2019-07-22 | 2020-07-22 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2024161168A Pending JP2024170658A (ja) | 2019-07-22 | 2024-09-18 | 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (3) | US11688424B2 (enrdf_load_stackoverflow) |
| JP (3) | JP7229357B2 (enrdf_load_stackoverflow) |
| CN (2) | CN114144384B (enrdf_load_stackoverflow) |
| MY (1) | MY207080A (enrdf_load_stackoverflow) |
| WO (1) | WO2021015240A1 (enrdf_load_stackoverflow) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6999806B2 (ja) * | 2018-05-16 | 2022-01-19 | Hoya株式会社 | 磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
| WO2021015240A1 (ja) * | 2019-07-22 | 2021-01-28 | Hoya株式会社 | 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
| CN114787093A (zh) * | 2019-12-13 | 2022-07-22 | 豪雅株式会社 | 磁记录介质基板用或磁记录再生装置用玻璃间隔物用的玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置 |
| US11276716B2 (en) * | 2019-12-17 | 2022-03-15 | Taiwan Semiconductor Manufacturing Company, Ltd. | Image sensor with improved near-infrared (NIR) radiation phase-detection autofocus (PDAF) performance |
| US20240158281A1 (en) * | 2021-03-05 | 2024-05-16 | Hoya Corporation | Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device |
| US11964907B2 (en) * | 2022-02-14 | 2024-04-23 | Corning Incorporated | Glasses and glass-ceramics, and method of making the same |
| US11851367B1 (en) | 2022-02-14 | 2023-12-26 | Corning Incorporated | Precursor glasses and glass-ceramics comprising a crystalline phase having a jeffbenite crystalline structure |
| JPWO2024053741A1 (enrdf_load_stackoverflow) * | 2022-09-08 | 2024-03-14 | ||
| WO2024053056A1 (ja) * | 2022-09-08 | 2024-03-14 | Hoya株式会社 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU8460998A (en) * | 1997-07-30 | 1999-02-22 | Hoya Corporation | Method of producing glass substrate for information recording medium |
| SG98415A1 (en) * | 1999-07-07 | 2003-09-19 | Hoya Corp | Process for preparation of crystallized glass for information recording disk |
| US6627565B1 (en) * | 1999-07-27 | 2003-09-30 | Hoya Corporation | Crystallized glass substrate for information recording medium |
| AU7316500A (en) * | 1999-09-21 | 2001-04-24 | Kabushiki Kaisha Ohara | Holding member for information storage disk and information storage disk drive device |
| JP4785274B2 (ja) | 2001-05-29 | 2011-10-05 | 日本板硝子株式会社 | ガラス物品およびそれを用いた磁気記録媒体用ガラス基板 |
| JP4446683B2 (ja) * | 2002-05-24 | 2010-04-07 | Ｈｏｙａ株式会社 | 磁気記録媒体用ガラス基板 |
| JP5734189B2 (ja) * | 2009-08-10 | 2015-06-17 | Hoya株式会社 | 磁気記録媒体基板用ガラス、磁気記録媒体基板およびその製造方法、ならびに磁気記録媒体 |
| US20130126334A1 (en) * | 2010-08-31 | 2013-05-23 | Yoshihiro Tawara | Method for producing glass substrate for magnetic disks, and method for producing magnetic disk |
| SG183091A1 (en) | 2011-01-07 | 2012-09-27 | Asahi Glass Co Ltd | Glass substrate for information recording media, process for its production, and magnetic recording medium |
| US20140050912A1 (en) * | 2011-06-30 | 2014-02-20 | Hoya Corporation | Glass substrate for magnetic disk and method for manufacturing glass substrate for magnetic disk |
| MY166878A (en) * | 2012-05-16 | 2018-07-24 | Hoya Corp | Glass for magnetic recording medium substrate and usage thereof |
| CN105517966B (zh) * | 2013-09-09 | 2017-12-19 | Hoya株式会社 | 玻璃基板 |
| JP6131154B2 (ja) * | 2013-09-11 | 2017-05-17 | Hoya株式会社 | 磁気記録媒体基板用ガラスおよび磁気記録媒体基板 |
| WO2017002835A1 (ja) * | 2015-06-30 | 2017-01-05 | Hoya株式会社 | 磁気記録媒体基板用ガラス、磁気記録媒体基板および磁気記録媒体 |
| WO2017061501A1 (ja) * | 2015-10-05 | 2017-04-13 | 旭硝子株式会社 | データ記憶媒体基板用ガラス、データ記憶媒体用ガラス基板および磁気ディスク |
| CN109923083B (zh) * | 2016-11-14 | 2022-07-26 | Hoya株式会社 | 磁记录介质基板用玻璃、磁记录介质基板、磁记录介质和磁记录再生装置用玻璃间隔物 |
| JP7165655B2 (ja) | 2017-06-09 | 2022-11-04 | Hoya株式会社 | 情報記録媒体基板用ガラス、情報記録媒体基板、情報記録媒体および記録再生装置用ガラススペーサ |
| JP7276645B2 (ja) * | 2017-08-08 | 2023-05-18 | 日本電気硝子株式会社 | 磁気記録媒体用ガラス基板 |
| JP6999806B2 (ja) * | 2018-05-16 | 2022-01-19 | Hoya株式会社 | 磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
| JP7593110B2 (ja) * | 2019-02-07 | 2024-12-03 | Ａｇｃ株式会社 | 無アルカリガラス |
| WO2021015240A1 (ja) * | 2019-07-22 | 2021-01-28 | Hoya株式会社 | 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
| CN114787093A (zh) * | 2019-12-13 | 2022-07-22 | 豪雅株式会社 | 磁记录介质基板用或磁记录再生装置用玻璃间隔物用的玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置 |
-
2020
- 2020-07-22 WO PCT/JP2020/028450 patent/WO2021015240A1/ja active Application Filing
- 2020-07-22 CN CN202080052827.0A patent/CN114144384B/zh active Active
- 2020-07-22 CN CN202510529169.4A patent/CN120441191A/zh active Pending
- 2020-07-22 US US17/629,002 patent/US11688424B2/en active Active
- 2020-07-22 MY MYPI2022000413A patent/MY207080A/en unknown
- 2020-07-22 JP JP2021534074A patent/JP7229357B2/ja active Active
-
2023
- 2023-02-14 JP JP2023020828A patent/JP7559105B2/ja active Active
- 2023-05-24 US US18/323,378 patent/US12211533B2/en active Active
-
2024
- 2024-09-18 JP JP2024161168A patent/JP2024170658A/ja active Pending
- 2024-12-31 US US19/007,105 patent/US20250140290A1/en active Pending
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